488740 video gallery choopy in ie9 html background issue

My video gallery in IE9 seem to be very choppy. A wimpy video player is embedded in a html site. When the video is played in IE9, the video is choppy. the audio and video dont seem to match. When I remove the Background image of the video player seems to work fine. It works fine in FF4, chrome, but in IE9 seems to be the issue. Need a fix for this asap.